rs773046204
Variant summary
Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2
The NM_020436.5(SALL4):c.203G>A(p.Arg68Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000621 in 1,611,502 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R68W) has been classified as Likely benign.
Frequency
Consequence
NM_020436.5 missense
Scores
Clinical Significance
Conservation
Publications
- Duane-radial ray syndromeInheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae), PanelApp Australia
- Duane retraction syndromeInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- IVIC syndromeInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
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ACMG classification
Our verdict: Likely_benign. The variant received -6 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
SALL4 | NM_020436.5 | c.203G>A | p.Arg68Gln | missense_variant | Exon 2 of 4 | ENST00000217086.9 | NP_065169.1 | |
SALL4 | NM_001318031.2 | c.203G>A | p.Arg68Gln | missense_variant | Exon 2 of 4 | NP_001304960.1 | ||
SALL4 | XM_047440318.1 | c.-104G>A | 5_prime_UTR_variant | Exon 2 of 4 | XP_047296274.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000329 AC: 5AN: 152130Hom.: 0 Cov.: 30 show subpopulations
GnomAD2 exomes AF: 0.0000322 AC: 8AN: 248360 AF XY: 0.0000371 show subpopulations
GnomAD4 exome AF: 0.0000651 AC: 95AN: 1459372Hom.: 0 Cov.: 35 AF XY: 0.0000634 AC XY: 46AN XY: 726088 show subpopulations
GnomAD4 genome AF: 0.0000329 AC: 5AN: 152130Hom.: 0 Cov.: 30 AF XY: 0.0000404 AC XY: 3AN XY: 74302 show subpopulations
ClinVar
Submissions by phenotype
Duane-radial ray syndrome Uncertain:1
In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The glutamine amino acid residue is found in multiple mammalian species, suggesting that this missense change does not adversely affect protein function. These predictions have not been confirmed by published functional studies and their clinical significance is uncertain. This variant has not been reported in the literature in individuals with SALL4-related disease. This variant is present in population databases (rs773046204, ExAC 0.02%). This sequence change replaces arginine with glutamine at codon 68 of the SALL4 protein (p.Arg68Gln). The arginine residue is weakly conserved and there is a small physicochemical difference between arginine and glutamine. -
Inborn genetic diseases Uncertain:1
The c.203G>A (p.R68Q) alteration is located in exon 2 (coding exon 2) of the SALL4 gene. This alteration results from a G to A substitution at nucleotide position 203, causing the arginine (R) at amino acid position 68 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
Oculootoradial syndrome;C1623209:Duane-radial ray syndrome Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at